Mechanical movement



June 18, 1929.

E. D. HARRIS MECHANICAL MOVEMENT Filed May 10, 1927 2 Sheets-Sheet June18, 1929.

E. D. HARRIS MECHANICAL MOVEMENT Filed May 10, 1927 2 Sheets-SheetInventor ZZmeze/p 52713 By Art/2mg Patented June is, 1929.

unites stares! p 1,717,706 PIA- ENT 1 o FF ics I EBENEZER n. HARRIS, OFLANDER, momma;

MECHANICAL MOVEME Application filed'May 10,

heretofore unequalled achievements in a de-- vice of this kind. I

Although the invention has .been constructed with a view. towardproviding a new principle of leverage between a wind. motor (windmill),and a fluid pump, I prefer to illustrate and describe it as a new formof mechanical movement capable of efficient transmission of power fromany appropriatesource, to machinery of anykind.

The details, aswell as their relative association and arrangement, andthe advantages derived from the new organization thereof, will becomemore readily apparent from the following description and drawings.

In the drawings; wherein like reference characters are employed todesignate like parts throughout the.same:-

Figure 1 is a front ,elevational view of the complete mechanicalmovement as constructed in accordance with the present invention.

Fig. 2

tive parts. I

Fig. 3 1s a new based upon Fig. 1, and

showing the position of parts at a starting point. I Fig. tie a similarview showing the posi-'. tion of parts at an intermediate point, and

Fig. 5 is a similar View showing the relative position of parts at thefinish. Briefly described, the improved crum and a relatively fixed;rotary power supply shaft'located in a horizontalplane and in spacedparallelism beneath the T111? crum. A pendulous body is mountedfo'roscillation on the'fulcrum, and swings in a direction'from right'to leftfroma starting position shown in Fig. 3, to a finishingposition shown inFigsro and 1 respectively. A

is a side or edge view of the same, disclosing the relative planes oftherespec the reciprocatory element is a mechani- I cal movement comprisesa' stationary ful-. f

1927'. Serial No. 190,252.

positive driving connection,preferablygear- "ing, is disposed betweenthe power shaft and the body, and-is constru'ctedto move the body slowlyand positively from the starting point toward the finish, and to'thenpermit a smooth but rapid return to the starting point.

to designate the same parts throughout, it will beseenthatthereferencecharacter (l designates a stationary fulcrum foranoscillatory lever 7 While this lever may be of some otherconfiguration, it preferably comprises a pendulous body,8'in'the formofa substantially flat segmental plate. This plate is, obviously,mounted for-oscillation labout the fulcrumpoint 6' and, as :before"stated, it: is swingable in a direction from' right to left from theposition shown in "Fig. 3, (the-starting point), toward and to theReferring nowyto the drawing in detail,

and employing the same referencecharacters completing or finishing 1position shown in Figs. 5 and 1. I a I I This plate embodies arelatively thick solid portion which is provided in its backwithclearance pockets 9. and 10 located on opposite sides of the fulcrumand serving a purpose to be hereinafter described. ltalso' includes anarcuate toothed rack- 11 located on one marginal side and definmg apeculiarly shaped opening #12. Formedon the in ner edge of this opening 12,opposed to the rack teeth and arranged on an outwardly spaced plane tothese teeth, we finda single pair of gear teeth13 which function in 'a Imanner to be later described, Also, the end edges of this opening 12,which areof peculiarformation, will bedescribed later, in

thattliey serve in promoting the advantage ous lever principle desired.

lug 14 withwhich thereciprocatory element While considering th's'platehowever, it .is thought appropriateto direct "attention to: Ianoutstandingeceentrically disposedpin or 15 is pivotally connected. 'Inthis instance,

- P m n' od and is'shownindottedlines. I 7

Attention is now in it d in appropriate bearings (notshown) which, inthe present instance isdisposed in spaced to the'power supply shaft 16which is, ofcourse, mounted parallelism beneath thekfulcrum shaft 6,(see Figs. 1 and 2). The end ofthispower shaft .16 terminates in a planewith the front:

surface of the thickenedfportion of'the pendulous body'7. 'Thisendoftheishaft car-" opening 12.

ries a toothed gear segment 17 the teeth of I which are locatedto meshwith "the teeth. of

the rack 11, and thus, this gear segment is movable in a peculiarlyshaped space or Moreover, it is fixedlvmounted on the shaft 16v andturns throughout alcomplete revolution. Superimposedupon the centrahportion of this gear'segment 17 and preferably lformedintegraltherewith, is a gear sector 18. Incidentally, thisgear sector isprovided with three teeth which are located .in plane and in mesh withthe aforesaid pair of teeth 13', on the plate'8 adjacent the fulcrum 6.It willjbe' noteditoo, that the extremity ot'theteeth on the sectorl8arespaeed inwardly of extremitiesof the teeth on the gear segment 17.

I WOHlCl'alSO call attention to a pair of peculiarly shaped lugs 19and20 which form j a-partof this gears'ector.v ,At this time it Ymightbe st'atedthat the" aforesaid pockets 9 and lO are, obviously, toaccommodate the; rotary. movement ofthe segmental gear 17;

By.- directing attention; now to Fig. 2,.it will be observed that theplat-e8 is provided fonjthe left or rear side with an integrally formedhub 21 carrying aradiating arm 22' terminating in a raised ovate cam23.; In

addition, a similar hub 2t is keyed upon a power shaft 16 andiisprovided with a' radiating arm 25 located in close proximity to theplate 8' and carrying afreely'rotatable anti-friction roller 26 forcooperation with the cam 23. The arms 22 and 25, together with the cam23-and the roller, 26 are both. I formedin what maybegenerallydesignated as aretention device. r

In. considering the operation or" this improved mechanical movement, itis. to be assumed that the pendulous body 7 oscillates back and forth,about the. fulcrum 6. For

. convenience, of illustration, it is to be furconsidered as thefinisher the return stroke; 0f the same rod.

' the teeth 13 on the pendulous body'i. It? follows therefore, that atthismoment, the "roller 26comes-into rolling contactvwith the ther'assumed that the position shownin Fig. 3 is a starting point for theupstroke of the pitman rod 15.' It might also be At this time,,th'eteeth on the gear segment 17 are about, to go into mesh-with the teethon the rack 11. Also, the. teethon the gear sector 18 have just becomedisengaged Irom cam 23." 1 It is obviou's'too, thatfthecooperaquentlythe cam 23, and r0ller 26 serve as a holding device at this interval oftime to .permita smooth change to be made.

, Assuming thenpthat the power shaft is rotating in a direction fromright to left, andthat-the upstroke'on the rod 15 is about to begin, itwill beseen that owing to the peculiar shape of the gear sector 18,, aninitial thrust is broughtto bear .upon the plate 8 at thep'oint 27,. and28;. In other words,

the lug20 engages the shoulder 28, and the 1 the'initial movement in adirection right to left of the pendulous body.

Withthismotion of parts, it

17 and rack 11 is somewhat as indicated in Fig. hwlnch 15 known asthentermediate position. At this time, the eccentric pin 1% has moved froma point close to the power shaft to a more remote point. incidentally,the' close relationship of the point 1 with obviously advantageous. r

Moving on from the intermediate posit-ion,

the parts take the position shown in Fig. 5, whereln the pltman hasreached its uppermost pointin the upstroke. [Thelast tooth on the gearsegment 17 iii-leaving the corresponding tooth on the rack 11, untilitclears this tooth and the. gearv segment takes the pOSltlOD showninFig. 1. This is the beginning'of thereturn stroke. -Again, the roller 26comes into engagement with the cam 23 and provide for the change and toallow the xgcar sector 18 to come into mesh with the teeth 13.

With the constructionshown and described, it is obvious that. theupstroke of the pitman rod 15'1s'pos1t1ve, slow, and such thatfull-advantageis taken of the powerful leverage; provided during thismovement. It. follows also, that" the return stroke is veryrapid.

windmills developing a small; power, but capable of using" this smallpower to the'best advantage regardless of wind conditions.

Although; the structurehas been develisv evident that the relationshipof the gear segment Consequentl as stated at the -outset, I haveprovided a novel mechanical movement which is dependable for convert ingrotary motion into reciproeatory motion and sueh that it can beadvantageously usedin connection with air: motors and lug 19 engages theshoulder 21? to produce i 1! irom thepower shaftbeginning at the stroke,is

oped. for use 'for providinga better transmission of power, i'romawindmill to .a

pump, it is plainly obvious that it may be :used to equaladvantageinassociation with other forms oit machinerv.

It is thought that by considering the description in "connection withthe drawings, a clear understandingof the construction and operation ofparts will 'be had; -Therefore, a" morejlengthydescription is thoughtunnecessary. V

lVhile the. preferred embodiment et the opposite side, said gear teethbeing invention has been specifically illustrated and described, itis tobe understood that minor changes in the shape, size, and variation indistances of parts, may be resorted to within the scope ofthe adjoinedclaims.

Having thus described my invention, what I claim as new is 1. In amechanical movement of the class described, a fixedly mounted fulcrum, a

pendulous body mounted for oscillation on.

said fulcrum, an eccentric pitman connecting pin carried by saidbody, apower shaft mounted for rotation in fixed relationship to said fulcrum,complemental gearing between said shaft and body for oscillating saidbody in opposite directions and for producing a relatively slow movementof the body in one directionand a relatively rapid movement of the bodyin an opposite direction, complemental elements carried by said body andshaft for producing a retention device adapted to come into play at theend of each stroke of the body to provide fora smooth change in thegearing.

2. In a mechanical movement of the class described, a stationaryfulcrum, a segmental plate mounted for oscillation thereon, said platebeing provided with a pitman rod coacting pin eccentrically located,being provided with an enlarged opening having an arcuate toothed rackbar atone side and having a'pair of: gear teeth located on an disposedsaid fulcrum, shaft close to a p ow er mounted for rotation and in fixedrelationship to said fulcrum, a segmental gear fixedly mounted on saidpower shaft and located in said opening for cooperating with the teethof said rack bar, a relatively small toothed gear sector alsocarr-iedsb-y said power shaft and superimposed upon the central portionof said gear, segment, for co operation with said pairofgear teeth, saidgear sector being provided with outstanding lugs for cooperation withend edges in the opening of said plate.

3. In a mechanical described, a stationary fulcrum, a segmental platemounted for oscillation thereon, said plate being provided with a pitmanrod connecting pin'eccentrically located, being provided with anenlarged opening having movement of the class an arcuate toothed rack,bar at one side and having a pair of gear teethlocated on an' oppositeside, said gear teeth being disposed close to said fulcrum, a powershaft mounted for rotation and in fixed relationship to said fulcrum, asegmentalgear fixedly mounted on'said power shaft and lo cated in saidopening for cooperat-ingfwitl the teeth of said rack bar, a relativelysmall toothed gear sector also" carried bysaid power shaft andsuperimposed upon the cena tral portion O'fSZLId gear segmentforcooperation with said pair of gear teeth, said gear sector beingprovided with outstanding additional arm carried by said power shaft,-

and an antifriction roller mounted for free rotation in the extremity ofsaid additional arm and located forcooperation with said I cam. r

In testimony whereof Iaifix my signature.

EBENEZER n. HARRIS.

